<?xml version="1.0" encoding="UTF-8" standalone="no"?>
<xs:schema xmlns:xs="http://www.w3.org/2001/XMLSchema" xmlns="http://www.sws-challenge.org/schemas/rnet/ACK" targetNamespace="http://www.sws-challenge.org/schemas/rnet/ACK" elementFormDefault="qualified"
  xmlns:sawsdl="http://www.w3.org/2002/ws/sawsdl/spec/sawsdl#" 
  xmlns:Ontology1="http://www.owl-ontologies.com/sws_challenge.owl">

	<xs:annotation>
		<xs:documentation>Authors: Michal Zaremba, Holger Lausen
$Revision: 1.1 $
$Date: 2006/03/06 17:45:10 $

This XML Schema has been created on the basis of the RosettaNet specification (http://rosettanet.org/) 
and is solely intended for the Semantic Web Challenge (http://www.sws-challenge.org/). </xs:documentation>
	</xs:annotation>
	<xs:import namespace="http://www.w3.org/XML/1998/namespace" schemaLocation="xml.xsd"/>
	<xs:element name="ReceiptAcknowledgment">
		<xs:annotation>
			<xs:documentation>Business information returned to a requesting party to verify business document receipt.</xs:documentation>
		</xs:annotation>
		<xs:complexType>
			<xs:sequence>
				<xs:element ref="NonRepudiationInformation" minOccurs="0"/>
			</xs:sequence>
		</xs:complexType>
	</xs:element>
	<xs:element name="NonRepudiationInformation">
		<xs:annotation>
			<xs:documentation>Information required to support non-repudiation of receipt.</xs:documentation>
		</xs:annotation>
		<xs:complexType>
			<xs:sequence>
				<xs:element ref="OriginalMessageDigest"/>
			</xs:sequence>
		</xs:complexType>
	</xs:element>
	<xs:element name="OriginalMessageDigest" sawsdl:modelReference="Ontology1#PurchaseOrderRequest">
		<xs:annotation>
			<xs:documentation>The base-64 encoded digest of the entire original mime message received. The digest MUST use the same algorithm as the original signed message.</xs:documentation>
		</xs:annotation>
		<xs:complexType mixed="true">
			<xs:choice minOccurs="0" maxOccurs="unbounded"/>
		</xs:complexType>
	</xs:element>
</xs:schema>